Eric Lee / linux-smarc-t335x-v3.2

Download as
Browse Code ยป

Commit fcb71f6f034c6c4f6a3ab4a55404c95db6e32653

Authored by FD Cami
Committed by Jeff Garzik
1 parent 4ccd3329a2
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

Update kernel parameter document for libata DMA mode setting knobs. 

Signed-off-by: Jeff Garzik <jeff@garzik.org>

Showing 1 changed file with 8 additions and 0 deletions Side-by-side Diff

Documentation/kernel-parameters.txt
Diff comments   View file @ fcb71f6
... ... @@ -883,6 +883,14 @@
883 883 lapic_timer_c2_ok [X86-32,x86-64,APIC] trust the local apic timer in
884 884 C2 power state.
885 885  
  886 + libata.dma= [LIBATA] DMA control
  887 + libata.dma=0 Disable all PATA and SATA DMA
  888 + libata.dma=1 PATA and SATA Disk DMA only
  889 + libata.dma=2 ATAPI (CDROM) DMA only
  890 + libata.dma=4 Compact Flash DMA only
  891 + Combinations also work, so libata.dma=3 enables DMA
  892 + for disks and CDROMs, but not CFs.
  893 +
886 894 libata.noacpi [LIBATA] Disables use of ACPI in libata suspend/resume
887 895 when set.
888 896 Format: <int>